Pyracmonite R220027
Name: Pyracmonite
RRUFF ID: R220027
Ideal Chemistry: (NH4)3Fe(SO4)3
Locality: Burnside, Northumberland Co., Pennsylvania, USA
Source: Rock Currier [view label]
Owner: RRUFF
Description: Sprays of colorless to white acicular or prismatic crystals, associated with yellow carlsonite (R220026).
Status: The identification of this mineral has been confirmed by X-ray diffraction.
Mineral Group: [ Pyracmonite (1) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R220027
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R220027
Cell Refinement Output: a: 15.2158(4)Å    b: 15.2158(4)Å    c: 8.9446(6)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 1793.42(15)Å3    Crystal System: hexagonal
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REFERENCES for Pyracmonite

American Mineralogist Crystal Structure Database Record: [view record]

Palmer K J, Wong R Y, Lee K S (1972) The crystal structure of ferric ammonium sulfate trihydrate, FeNH4(SO4)2*3H2O, Acta Crystallographica, B28, 236-241

Williams P A, Hatert F, Pasero M (2008) New minerals approved in 2008, in International Mineralogical Association 1-13   [view file]

Demartin F, Gramaccioli C M, Campostrini I (2010) Pyracmonite, (NH4)3Fe(SO4)3, a new ammonium iron sulfate from La Fossa crater, Vulcano, Aeolian Islands, Italy, The Canadian Mineralogist, 48, 307-313   [view file]

Poirier G, Tait K T, Rowe R (2011) New mineral names, American Mineralogist, 96, 936-945   [view file]